Messages

If you're going to do it, do it properly... ;)

http://farm2.staticflickr.com/1440/1030953318_306d81d24d_z.jpg

The missing link?  ;)

http://www.youtube.com/watch?v=0c4AwNrwt2I

Pete,
in case you'll be fettling any road cars, the rear springs are the shorter (and stiffer) ones.
http://www.flickr.com/photos/30132857@N06/6341616448/
Don't ask me about how these race cars are set up, though...   ;)

Ken

there isn't a specific length for springs to be honest, lots of different types, sizes, rates and shapes have been tried over the years. On a standard car i think the rears are longer and a slightly higher rate. what matters is making sure you can get the car to sit at the correct height once you have the race springs in the cans. We normally use a spacer under the spring or a tube between the cup at the back of the spring and the tie rod to get the desired length, keep the tie rod un modified, they will generally break if they've been welded. Just make sure that what you do allows the rod to pivot slightly (as per the original cup arrangement) and that everything is nice and square to avoid any unnecessary loads.

Was it from the Doncaster area?
If so, I condemned it and told the fellow who'd had it machined that it was only fit for scrap.
Check how much metal has been removed from the engine face, especially close to the mounting boss.
There's not much thickness left there...  >:(

http://www.flickr.com/photos/30132857@N06/6867300992/in/photostream

Ken. 

dagnam.... anyone want it? very light and balanced!

The only person to ever win world championships on both 2 and 4 wheels, but whose achievements have never been acknowledged in similar fashion to the honours bestowed upon other stars of motor sports.

Better late than never?        https://www.petitionbuzz.com/petitions/sirjohnsurtees

Ken

You could always run those details through one of the many free spring rate calculators which are available on the internet.    ;)

Some examples here...
http://www.reliablespring.co.uk/calculator.htm
http://www.pontiacracing.net/js_coil_spring_rate.htm

Btw, the original spring rates were different, with 'around' 800 lbs/in at the front and closer to 900 lbs/in for the rear.
Some details here, for comparison with your modified springs;
http://www.flickr.com/photos/30132857@N06/4259290322/in/photostream

Ken  

Duly cut one open. Going to send off to get tested. Whats interesting, well to me, is that they are different sized springs front and rear. Not seen that anywhere else.

The rears are 1.7 dia.
15.5 cm long
10 cm dia
6.6 int diameter
whilst fronts are
1.9 cm dia
15.1 long
10.3 ext
6.5 int.

Presume if these are not upgraded springs I need to replace with same lengths at the uprated strength?

Did the kingpin require a fair amount of 'persuasion' to drive it into the arm, or were you able to just tap it through?
It's supposed to be an interference fit in the arm and if that's been lost, it's sometimes possible to shrink the eye with a run of weld down its outside edge.
This won't work if the pin is a 'drop through' fit or if the bore is oval, as it's then time to find a serviceable replacement...

http://www.flickr.com/photos/30132857@N06/5274455230/in/photostream
&
http://www.flickr.com/photos/30132857@N06/5274455394/in/photostream



   

if we put our hands at 12 and 6 ie top and bottom there is no/little play but if at 3 and 9 we can see the top part of the kingpin physically move on the radius arm, the deflection at the wheel extreme must be genuinely 10mm. the unrebuilt side is extreme in its movement

Sam,
can I have the job of proofreader?   ;)

Ken

( That might help keep you in the good books of Messieurs Phil Myatt et David O'Keefe, not to mention Mademoiselle Sammie Fritchley... )

As the man said...
"Hello,
I'm Edmund Brendan Drake-Lee.​
I can't imagine there are many others with my name, so I suspect you've found the right person.
Well done."

Wonder if Trevor can resist the 'Dr. Livingstone, I presume' routine?  ;)

Chris,
another suggestion (since you're lucky enough to find these private roads to cruise at 80mph ;o), maybe fit some 155 section tyres to give slightly higher gearing, then you won't need to buzz the engine quite so hard.

This one had 145s on it, however the lack of suspension on the back end was more than a little scary if you didn't spot that big pothole in the road ahead... 
< http://www.flickr.com/photos/30132857@N06/3730694786/sizes/o/ >

Ken.

Derek,
guilty as charged on this second count.   ;)

Although it seems to be described as a Yacco when you search through the museum's exhibits...  ???

Ken.

Norry's car is in a museum in the USA as well; don't know where though.

Chris,
some years back, this place  < http://lanemotormuseum.org/ > was looking for another 2CV racer to add to their collection.
Nick Woodward's car was available, so it headed off to Nashville...

Ken
( Looks as though Jeff Lane is thinning out some of his Citroen stuff, as the other 2CV racer is on offer as well.) 

No flip-flops in the pit lane, please!  ;)

Well done. I was disappointed at not being there, especially as it was sunny! See you at the Costa del Snetterton soon.

alfsdad,
here you go, a starter pack for hours and hours of fun...

< http://cgi.ebay.co.uk/AMI-SUPER-2CV-PROJECT_W0QQitemZ160364640496 >

Ken.

Perhaps it's a case of the tail attempting to wag the dog?
I'm not in a position to comment on the other items which Trevor listed, but seem to recall that in order to obtain approval from the Club ( not the Technical Committee alone) for my chassis, there was a list of requirements specified.

Iirc, amongst these was the stipulation that the race chassis should be as close as possible in form and construction to that which was being marketed for road use, thus ruling out any 'exotic' solutions.

Torsion and beam strength tests were also carried out, to prove the chassis' suitability for racing.

Last but not least, it was stipulated that the price should be the same as the Frome race chassis and the OE Citroen item, presumably to avoid triggering a price war.
( Genuine Citroen chassis are still available, as well as SLC.)

I'd be very interested to know if these criteria have been relaxed, or simply ignored, by the current Technical Committee in this instance. 

Ken